Engineering

Coffee grounds offer performance boost for concrete

Engineers in Australia have found a way of making stronger concrete with roasted used-coffee grounds, to give the drink-additive a "double shot" at life and reduce waste going to landfills.

Energy & Green Tech

Clean, sustainable fuels made 'from thin air' and plastic waste

Researchers have demonstrated how carbon dioxide can be captured from industrial processes—or even directly from the air—and transformed into clean, sustainable fuels using just the energy from the sun.

Energy & Green Tech

Plastic upcycling to close the carbon cycle

There's a lot of potentially useful raw materials bound up in used face masks, grocery bags and food wrap. But it has been much cheaper to keep making more of these single-use plastics than to recover and recycle them.

page 2 from 4